Step 2 Remove Old Thermostat - Honeywell MagicStat T8132 Programming And Installation Instructions

STEP 2
Remove Old Thermostat
Test to make certain that your heating
and cooling systems are working properly. If
either does not work, contact your local heating/
air conditioning dealer. To avoid compressor
damage, do not operate the cooling system
when outdoor temperature is below 10° C [50°
F].
TURN OFF POWER to system at the
furnace, or at the fuse/circuit breaker panel.
Carefully unpack your new thermostat and
mounting plate; save package of screws,
instructions and receipt.
Remove cover from old thermostat. If it does
not snap off when pulled firmly from the bottom,
check for a screw used to lock on the cover.
Loosen screws holding thermostat to
subbase, wallplate or wall, and lift away.
Disconnect wires from old thermostat or
subbase. As you disconnect each wire, use
masking tape to label it with the old terminal
designation. If there are only two wires, they do
not need to be labeled. Keep the wires from
falling back into the wall by wrapping them
around a pencil, as shown.
4
WIRES THROUGH
WALL OPENING
M5136